1/*
2 * Copyright 2019 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23#include "amdgpu.h"
24#include "tonga_baco.h"
25
26#include "gmc/gmc_8_1_d.h"
27#include "gmc/gmc_8_1_sh_mask.h"
28
29#include "bif/bif_5_0_d.h"
30#include "bif/bif_5_0_sh_mask.h"
31
32#include "dce/dce_10_0_d.h"
33#include "dce/dce_10_0_sh_mask.h"
34
35#include "smu/smu_7_1_2_d.h"
36#include "smu/smu_7_1_2_sh_mask.h"
37
38
39static const struct baco_cmd_entry gpio_tbl[] = {
40 { CMD_WRITE, mmGPIOPAD_EN, 0, 0, 0, 0x0 },
41 { CMD_WRITE, mmGPIOPAD_PD_EN, 0, 0, 0, 0x0 },
42 { CMD_WRITE, mmGPIOPAD_PU_EN, 0, 0, 0, 0x0 },
43 { CMD_WRITE, mmGPIOPAD_MASK, 0, 0, 0, 0xff77ffff },
44 { CMD_WRITE, mmDC_GPIO_DVODATA_EN, 0, 0, 0, 0x0 },
45 { CMD_WRITE, mmDC_GPIO_DVODATA_MASK, 0, 0, 0, 0xffffffff },
46 { CMD_WRITE, mmDC_GPIO_GENERIC_EN, 0, 0, 0, 0x0 },
47 { CMD_READMODIFYWRITE, mmDC_GPIO_GENERIC_MASK, 0, 0, 0, 0x03333333 },
48 { CMD_WRITE, mmDC_GPIO_SYNCA_EN, 0, 0, 0, 0x0 },
49 { CMD_READMODIFYWRITE, mmDC_GPIO_SYNCA_MASK, 0, 0, 0, 0x00001111 }
50};
51
52static const struct baco_cmd_entry enable_fb_req_rej_tbl[] = {
53 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, 0xC0300024 },
54 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x1, 0x0, 0, 0x1 },
55 { CMD_WRITE, mmBIF_FB_EN, 0, 0, 0, 0x0 }
56};
57
58static const struct baco_cmd_entry use_bclk_tbl[] = {
59 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL },
60 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL__SPLL_BYPASS_EN_MASK, CG_SPLL_FUNC_CNTL__SPLL_BYPASS_EN__SHIFT, 0, 0x1 },
61 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL_2 },
62 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG__SHIFT, 0, 0x1 },
63 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_STATUS },
64 { CMD_WAITFOR, mmGCK_SMC_IND_DATA, CG_SPLL_STATUS__SPLL_CHG_STATUS_MASK, 0, 0xffffffff, 0x2 },
65 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL_2 },
66 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG__SHIFT, 0, 0x0 },
67 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG__SHIFT, 0, 0x1 },
68 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_STATUS },
69 { CMD_WAITFOR, mmGCK_SMC_IND_DATA, CG_SPLL_STATUS__SPLL_CHG_STATUS_MASK, 0, 0xffffffff, 0x2 },
70 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL_2 },
71 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG__SHIFT, 0, 0x0 },
72 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, 0xC0500170 },
73 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x4000000, 0x1a, 0, 0x1 },
74 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixMPLL_BYPASSCLK_SEL },
75 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL_MASK, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL__SHIFT, 0, 0x2 },
76 { CMD_READMODIFYWRITE, mmMPLL_CNTL_MODE, MPLL_CNTL_MODE__MPLL_SW_DIR_CONTROL_MASK, MPLL_CNTL_MODE__MPLL_SW_DIR_CONTROL__SHIFT, 0, 0x1 },
77 { CMD_READMODIFYWRITE, mmMPLL_CNTL_MODE, MPLL_CNTL_MODE__MPLL_MCLK_SEL_MASK, MPLL_CNTL_MODE__MPLL_MCLK_SEL__SHIFT, 0, 0x0 }
78};
79
80static const struct baco_cmd_entry turn_off_plls_tbl[] = {
81 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL },
82 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL__SPLL_RESET_MASK, CG_SPLL_FUNC_CNTL__SPLL_RESET__SHIFT, 0, 0x1 },
83 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL__SPLL_PWRON_MASK, CG_SPLL_FUNC_CNTL__SPLL_PWRON__SHIFT, 0, 0x0 },
84 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, 0xC0500170 },
85 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x2000000, 0x19, 0, 0x1 },
86 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x8000000, 0x1b, 0, 0x0 },
87 { CMD_READMODIFYWRITE, mmMPLL_CNTL_MODE, MPLL_CNTL_MODE__GLOBAL_MPLL_RESET_MASK, MPLL_CNTL_MODE__GLOBAL_MPLL_RESET__SHIFT, 0, 0x1 },
88 { CMD_WRITE, mmMPLL_CONTROL, 0, 0, 0, 0x00000006 },
89 { CMD_WRITE, mmMC_IO_RXCNTL_DPHY0_D0, 0, 0, 0, 0x00007740 },
90 { CMD_WRITE, mmMC_IO_RXCNTL_DPHY0_D1, 0, 0, 0, 0x00007740 },
91 { CMD_WRITE, mmMC_IO_RXCNTL_DPHY1_D0, 0, 0, 0, 0x00007740 },
92 { CMD_WRITE, mmMC_IO_RXCNTL_DPHY1_D1, 0, 0, 0, 0x00007740 },
93 { CMD_READMODIFYWRITE, mmMCLK_PWRMGT_CNTL, MCLK_PWRMGT_CNTL__MRDCK0_PDNB_MASK, MCLK_PWRMGT_CNTL__MRDCK0_PDNB__SHIFT, 0, 0x0 },
94 { CMD_READMODIFYWRITE, mmMCLK_PWRMGT_CNTL, MCLK_PWRMGT_CNTL__MRDCK1_PDNB_MASK, MCLK_PWRMGT_CNTL__MRDCK1_PDNB__SHIFT, 0, 0x0 },
95 { CMD_READMODIFYWRITE, mmMC_SEQ_CNTL_2, MC_SEQ_CNTL_2__DRST_PU_MASK, MC_SEQ_CNTL_2__DRST_PU__SHIFT, 0, 0x0 },
96 { CMD_READMODIFYWRITE, mmMC_SEQ_CNTL_2, MC_SEQ_CNTL_2__DRST_PD_MASK, MC_SEQ_CNTL_2__DRST_PD__SHIFT, 0, 0x0 },
97 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_CLKPIN_CNTL_2 },
98 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_CLKPIN_CNTL_2__FORCE_BIF_REFCLK_EN_MASK, CG_CLKPIN_CNTL_2__FORCE_BIF_REFCLK_EN__SHIFT, 0, 0x0 },
99 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixMPLL_BYPASSCLK_SEL },
100 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL_MASK, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL__SHIFT, 0, 0x4 },
101 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixMISC_CLK_CTRL },
102 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MISC_CLK_CTRL__DEEP_SLEEP_CLK_SEL_MASK, MISC_CLK_CTRL__DEEP_SLEEP_CLK_SEL__SHIFT, 0, 0x1 },
103 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MISC_CLK_CTRL__ZCLK_SEL_MASK, MISC_CLK_CTRL__ZCLK_SEL__SHIFT, 0, 0x1 },
104 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_CLKPIN_CNTL },
105 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_CLKPIN_CNTL__BCLK_AS_XCLK_MASK, CG_CLKPIN_CNTL__BCLK_AS_XCLK__SHIFT, 0, 0x0 },
106 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixTHM_CLK_CNTL },
107 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, THM_CLK_CNTL__CMON_CLK_SEL_MASK, THM_CLK_CNTL__CMON_CLK_SEL__SHIFT, 0, 0x1 },
108 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, THM_CLK_CNTL__TMON_CLK_SEL_MASK, THM_CLK_CNTL__TMON_CLK_SEL__SHIFT, 0, 0x1 }
109};
110
111static const struct baco_cmd_entry enter_baco_tbl[] = {
112 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_EN_MASK, BACO_CNTL__BACO_EN__SHIFT, 0, 0x01 },
113 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, BACO_CNTL__BACO_BIF_SCLK_SWITCH__SHIFT, 0, 0x01 },
114 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, 0, 5, 0x40000 },
115 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, BACO_CNTL__BACO_BCLK_OFF__SHIFT, 0, 0x01 },
116 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, 0, 5, 0x02 },
117 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, BACO_CNTL__BACO_ISO_DIS__SHIFT, 0, 0x00 },
118 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, 0, 5, 0x00 },
119 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, BACO_CNTL__BACO_ANA_ISO_DIS__SHIFT, 0, 0x00 },
120 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, 0, 5, 0x00 },
121 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, BACO_CNTL__BACO_POWER_OFF__SHIFT, 0, 0x01 },
122 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, 0, 5, 0x08 },
123 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_MODE_MASK, 0, 0xffffffff, 0x40 }
124};
125
126#define BACO_CNTL__PWRGOOD_MASK BACO_CNTL__PWRGOOD_GPIO_MASK+BACO_CNTL__PWRGOOD_MEM_MASK+BACO_CNTL__PWRGOOD_DVO_MASK
127
128static const struct baco_cmd_entry exit_baco_tbl[] = {
129 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x01 },
130 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, BACO_CNTL__BACO_BCLK_OFF__SHIFT, 0, 0x00 },
131 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, BACO_CNTL__BACO_POWER_OFF__SHIFT, 0, 0x00 },
132 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_BF_MASK, 0, 0xffffffff, 0x200 },
133 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, BACO_CNTL__BACO_ISO_DIS__SHIFT, 0, 0x01 },
134 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_MASK, 0, 5, 0x1c00 },
135 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, BACO_CNTL__BACO_ANA_ISO_DIS__SHIFT, 0, 0x01 },
136 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, BACO_CNTL__BACO_BIF_SCLK_SWITCH__SHIFT, 0, 0x00 },
137 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x00 },
138 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__RCU_BIF_CONFIG_DONE_MASK, 0, 5, 0x100 },
139 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_EN_MASK, BACO_CNTL__BACO_EN__SHIFT, 0, 0x00 },
140 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_MODE_MASK, 0, 0xffffffff, 0x00 }
141};
142
143static const struct baco_cmd_entry clean_baco_tbl[] = {
144 { CMD_WRITE, mmBIOS_SCRATCH_6, 0, 0, 0, 0 },
145 { CMD_WRITE, mmBIOS_SCRATCH_7, 0, 0, 0, 0 }
146};
147
148static const struct baco_cmd_entry gpio_tbl_iceland[] = {
149 { CMD_WRITE, mmGPIOPAD_EN, 0, 0, 0, 0x0 },
150 { CMD_WRITE, mmGPIOPAD_PD_EN, 0, 0, 0, 0x0 },
151 { CMD_WRITE, mmGPIOPAD_PU_EN, 0, 0, 0, 0x0 },
152 { CMD_WRITE, mmGPIOPAD_MASK, 0, 0, 0, 0xff77ffff }
153};
154
155static const struct baco_cmd_entry exit_baco_tbl_iceland[] = {
156 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x01 },
157 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, BACO_CNTL__BACO_BCLK_OFF__SHIFT, 0, 0x00 },
158 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, BACO_CNTL__BACO_POWER_OFF__SHIFT, 0, 0x00 },
159 { CMD_DELAY_MS, 0, 0, 0, 20, 0 },
160 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_BF_MASK, 0, 0xffffffff, 0x200 },
161 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, BACO_CNTL__BACO_ISO_DIS__SHIFT, 0, 0x01 },
162 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_MASK, 0, 5, 0x1c00 },
163 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, BACO_CNTL__BACO_ANA_ISO_DIS__SHIFT, 0, 0x01 },
164 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, BACO_CNTL__BACO_BIF_SCLK_SWITCH__SHIFT, 0, 0x00 },
165 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x00 },
166 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__RCU_BIF_CONFIG_DONE_MASK, 0, 5, 0x100 },
167 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_EN_MASK, BACO_CNTL__BACO_EN__SHIFT, 0, 0x00 },
168 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_MODE_MASK, 0, 0xffffffff, 0x00 }
169};
170
171static const struct baco_cmd_entry clean_baco_tbl_iceland[] = {
172 { CMD_WRITE, mmBIOS_SCRATCH_7, 0, 0, 0, 0 }
173};
174
175int tonga_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state)
176{
177 enum BACO_STATE cur_state;
178
179 smu7_baco_get_state(hwmgr, state: &cur_state);
180
181 if (cur_state == state)
182 /* aisc already in the target state */
183 return 0;
184
185 if (state == BACO_STATE_IN) {
186 if (hwmgr->chip_id == CHIP_TOPAZ)
187 baco_program_registers(hwmgr, entry: gpio_tbl_iceland, ARRAY_SIZE(gpio_tbl_iceland));
188 else
189 baco_program_registers(hwmgr, entry: gpio_tbl, ARRAY_SIZE(gpio_tbl));
190 baco_program_registers(hwmgr, entry: enable_fb_req_rej_tbl,
191 ARRAY_SIZE(enable_fb_req_rej_tbl));
192 baco_program_registers(hwmgr, entry: use_bclk_tbl, ARRAY_SIZE(use_bclk_tbl));
193 baco_program_registers(hwmgr, entry: turn_off_plls_tbl,
194 ARRAY_SIZE(turn_off_plls_tbl));
195 if (baco_program_registers(hwmgr, entry: enter_baco_tbl,
196 ARRAY_SIZE(enter_baco_tbl)))
197 return 0;
198
199 } else if (state == BACO_STATE_OUT) {
200 /* HW requires at least 20ms between regulator off and on */
201 msleep(msecs: 20);
202 /* Execute Hardware BACO exit sequence */
203 if (hwmgr->chip_id == CHIP_TOPAZ) {
204 if (baco_program_registers(hwmgr, entry: exit_baco_tbl_iceland,
205 ARRAY_SIZE(exit_baco_tbl_iceland))) {
206 if (baco_program_registers(hwmgr, entry: clean_baco_tbl_iceland,
207 ARRAY_SIZE(clean_baco_tbl_iceland)))
208 return 0;
209 }
210 } else {
211 if (baco_program_registers(hwmgr, entry: exit_baco_tbl,
212 ARRAY_SIZE(exit_baco_tbl))) {
213 if (baco_program_registers(hwmgr, entry: clean_baco_tbl,
214 ARRAY_SIZE(clean_baco_tbl)))
215 return 0;
216 }
217 }
218 }
219
220 return -EINVAL;
221}
222

source code of linux/drivers/gpu/drm/amd/pm/powerplay/hwmgr/tonga_baco.c